Well...
I have
TapaTalk Pro, V2.2.1 on both my iPhone and my iPad and they work GREAT.
Might I suggest you try that instead of V4 ???
https://itunes.apple.com/us/app/tapatalk-pro/id585178888?mt=8
Tapatalk Pro
By Quoord Systems
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Open iTunes to buy and download apps.
Description
Introducing Tapatalk Pro
Tapatalk Pro is the
premium version over the original Tapatalk, with the following additional features:
- Totally new UI, much faster to navigation to different communities, topics and posts
- New look and feel with switchable theme and night-mode support
- Aviary Photo Editor
- Unlimited Photo Upload
- Save Attachments to Dropbox
- Fully Optimised for iOS 6 and iPhone 5
- New contextual "Magic Wheel" intelligently shows available actions
- Blazingly fast "Quick Reply" bar and other UI innovation
What is Tapatalk?
Discover great internet discussions or stay connected with your favourites community on-the-go with this award-winning mobile app. Tapatalk is the only mobile app combing over 50,000 internet communities with a streamlined mobile experience, allowing you to share and follow thoughts, photos, opinions to all your communities within a single mobile app.
Tapatalk aggregates discussions from internet communities, from automotive to parenting, from gardening to horse-riding - You will meet passionate people who share the same interest and participate in great discussions on topics only you and the like-minded members truly appreciated.
** Inc. Magazine selected Tapatalk as "Must Have" **
** Tapatalk is the winner of HSBC Youth Business Award **